i didnt say it was impossible to keep FH with other cichlids, just that it was extremely uncommon, you must have gotten lucky with yours and yes individual temperaments do vary of course but overall you can expect certain species to act a certain way and overall, usually FH dont tolerate tankmates once mature. if OP is lucky and his FH doesnt turn psycho then great for him but i just wanted to prepare him for the more than likely outcome that it will have to be housed alone (i don't personally keep flowerhorn though, so this is all second-hand experiences from friends and people on here)